Ridstar MN-26 26" Fat Tire Electric Bike – 48V 20Ah Battery, 15OOW Motor, 36 MPH Max Speed, Shimano 7-Speed Gears, and Long-Range Performance. TheRidstar MN-26 electric mountain bike is built for power and performance, featuring ahigh-performance 15OOW peak rear hub motor that allows you to conquer steep30-40-degree slopes with ease.